A diffuse reflectance portable near infrared spectroscopy system for the determination of biuret content in urea fertilizer

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-11-28 DOI:10.1177/09670335221136546

Jing Liu, Sha Yu, Shupeng Hu, Ziyang Ling, Jiguang Gao, Binmei Liu, Lixiang Yu, Yang Yang, Ye Yang, Qi Wang, Xiaoyu Ni, Liping Zhao, Yuejin Wu

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引用次数: 0

Abstract

Simple, rapid, and reliable determination of the biuret content in urea fertilizer is very important for the development of fertilizer industry. A near infrared diffuse reflectance measurement system with a portable spectrometer was developed, in which the reference and dark background spectrum could also be recorded automatically in addition to the absorbance data. The key performances of the proposed NIR system have been tested on urea fertilizer. Numerical experiments showed that the coefficient of determination (R2) of the external validation set was 0.97, with a root mean square error (RMSE) of 0.04%. The ratios of the performance deviation (RPD) value in the calibration and validation sets were 12 and 3.5, respectively. It can be concluded that this NIR system for the determination of biuret content in urea fertilizer may potentially be used as an alternative method to traditional wet chemical methods due to its simplicity, sensitivity, and portability.

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漫反射便携式近红外光谱法测定尿素肥料中双缩脲含量

简单、快速、可靠地测定尿素肥料中双缩脲的含量对化肥工业的发展具有重要意义。研制了一种便携式光谱仪近红外漫反射测量系统，该系统除可自动记录吸光度数据外，还可自动记录参考光谱和暗背景光谱。本文提出的近红外系统的关键性能在尿素肥料上进行了测试。数值实验结果表明，外部验证集的决定系数(R2)为0.97，均方根误差(RMSE)为0.04%。标定集和验证集的性能偏差(RPD)值的比值分别为12和3.5。该方法简便、灵敏、便携，可作为传统湿化学方法的替代方法，用于尿素肥料中双缩脲含量的测定。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.